70.Okayama Castle Part1

Okayama Castle was still located in Okayama City which is the prefectural capital of Okayama Prefecture. Its main tower was nicknamed as “Ujo” which means “Crow Castle” because of its black colored walls. This article will explain its story from the beginning to its completion.

Location and History

Introduction

Okayama Castle was still located in Okayama City which is the prefectural capital of Okayama Prefecture. Its main tower was nicknamed as “Ujo” which means “Crow Castle” because of its black colored walls. Although the original main tower was unfortunately burned down by the Okayama Great Air Raid on the 29th of June in 1945, it was apparently fully restored in 1966. There is the Okayama Korakuen Garden across the river from the castle, which is called one of Japan’s three most beautiful gardens. Therefore, the area around is a very popular tourist spot. The area was created not for a short time but for a long time between three different lord families. They are the Ukita Clan which built the castle, the Kobayakawa Clan which modernized it, and finally the Ikeda Clan which completed it. As a result, the castle became the origin of the city. This article will explain its story from the beginning to its completion.

The current main tower of Okayama Castle

Was Naoie Ukita an Accomplished Villain?

Naoie Ukita became a great warlord around the current Okayama Prefecture in his life during the Sengoku Period. However, he wored so hard to achieve this that he has been labeled “an accomplished villain” or “One of the three great villains” in the period (the other two were Dosan Saito and Hisahide Matsunaga”). The bad reputation started from the first Edo Period. Hoan Oze, a writer at that time, described it in his “Hoan Taikoki” which is a popular biography of Hideyoshi Toyotomi. He wrote as followed:

“A person, who has a good talent, but uses it for his own benefit against justice, would eventually destroy himself.”

He mentioned Naoie in the example above. Hoan was devoted to Confucianism, therefore, he seemed to look back at the Sengoku Period to make a consequence theory. As a reality, most warlords were also something like Naoie which Hoan wrote, but as a result, most people during the peaceful Edo Period accepted Hoan’s theory. The three villain’s family’s power declined then because of financial reasons; therefore, they lost the ability to complain about it.

The restored wooden statue of Naoie Ukita, exhibited by Okayama Castle

The theory was accelerated by the Bizen Gunki, a war chronicle which was written during the late Edo Period. This book is one of the few remaining records which say Naoie’s early days as followed:

“Naoie and his family were attacked by an enemy but managed to escape from their castle and wandered when he was only a little child. After he grew up, he served the Uragami Clan and avenged the enemy. He also got promoted because of his talent. However, he worked hard for this. For example, he even killed his relatives even they were his son-in-laws. He used any means necessary such as tricks, assassinations and the use of poison. He eventually defeated his master to become a great warlord.”

The book makes us believe that Noaie was really an accomplished villain. However, recent studies are confirming these descriptions one by one. So far, some of them are false (for example, one of the murders was not actually committed by Naoie). The work is incomplete and vague. If more evidence comes out in the future, Naoie might actually be seen as a hero rather than a villain. Even though many of the descriptions are confirmed, they may have been common ways for warlords to survive. In addition, the hierarchical system was very chaotic and unstable during the Sengoku Period. It was often revised and changed because of the power struggle that often plagued the Senoku Period, unlike the peaceful Edo Period.

Naoie’s last home was Okayama which was near the Seto Inland Sea to the south at that time. The location was good for land and water transportation. It was on the delta of estuary of Asahigawa River which flowed into the sea. The delta had three hills, one of which was called Ishiyama (which means stone mountain), where Naoie built the main enclosure of the castle. Another one was called Okayama, which was the origin of the castle and the current city’s name. The scale of the castle was still small. However, Naoie expected that the castle and town would eventually prosper.

The imaginary map around the Okayama area before the Edo Period, exhibited by Okayama Castle
The range of Okayama Castle during Naoie’s period, exhibited by Okayama Castle

After Naoie became a great warlord, his actions were recorded multiple times. However, the records say Naoie was worried about his last decision. In the late 1570’s, the Oda Clan and the Mori Clan battled each other over the Chugoku Region including Naoie’s territories. He was on the Mori’s side and fought against the Oda Clan. At first the Mori Clan was more superior than the Oda Clan which eventually changed. Naoie seemed to continue watching this trend while keeping a cool head. He finally decided to switch over from the Mori to the Oda in 1579 through the agency of Hideyoshi Hashiba who was a senior vassal of the Oda Clan. That meant Naoie would become the frontline against the Mori Clan. Severe battles continued for a while. Naoie unfortunately got sick and eventually died around January in 1582 (according to the lunar calendar). Hideyoshi wanted to expand his empire. He entered Okayama Castle in April and battled against the Mori Clan at Bicchu-Takamatsu Castle in May before the Honnnoji Incident happened in June, which resulted in him being the next ruler. As a result, Naoie’s decision was correct.

The portrait of Nobunaga Oda, attributed to Soshu Kano, owned by Chokoji Temple, in the late 16th century (licensed under Public Domain via Wikimedia Commons)
The portrait of Terumoto Mori, owned by the Mori Museum (licensed under Public Domain via Wikimedia Commons)
The ruins of Bicchu-Takamatsu Castle

Hideie Ukita, a young nobleman of the Toyotomi Government, develops the Castle

Hideie Ukita followed his father, Naoie when he was only 11 years old but was supported by his relatives. The Ukita Clan joined the unification of Japan by Hideyoshi Toyotomi (who changed his name from Hashiba). Hideie was eventually promoted by Hideyoshi finally as a member of the council of the 5 elders. He was the youngest member in the council (at only 27 years old) while the others were all over 40. Historians speculate that there are 4 reasons for his early promotion.

The portrait of Hideie Ukita, owned by Okayama Castle (licensed under Public Domain via Wikimedia Commons)
  1. Hideyoshi felt an obligation for the contributions of the Ukita Clan
    The clan joined Hideyoshi’s troops during the most important period of his unification of Japan.
  1. The affection from Hideyoshi to Go-hime, Hideie’s wife
    Go-hime was a daughter of Toshiie Maeda, who was adopted to Hideyoshi when she was a baby. Hideyoshi loved her very much because he didn’t have children then. However, he finally got more children later on his life. Her husband was Hideie. When she suffered from a terrible sickness, Hideyoshi blamed it on the curse of the foxes. He ordered Fushimi Inari Shrine to pray for her recovery (the shrine uses foxes as envoys). He also declared that he would destroy the shrine and hunt foxes every year if she died. She fortunately recovered. Go-hime was the important connection between Hideyoshi and Hideie.
  1. The good relationship between Hideyoshi and Hideie himself
    There are no records that indicate Hideyoshi, who was a whimsical ruler, was ever angry at Hideie. Hideyoshi once announced that Hideie would be the ruler of Japan or Korea during the first stage of his invasion of Korea. (Hideyoshi himself wanted to rule China.) Hideie didn’t have his own military contributions but was often active fighting which might have been admired by Hideyoshi. He also spent huge amount of money and time for Noh plays, tea ceremonies, and falconries (using a falcon for hunting), which Hideyoshi also liked. In addition, you might think he was handsome person when you look at his portrait. However, the image above was drawn during the Showa Era using the author’s imagination.

4, Hideyoshi wanted to promote his relatives
When Hideyoshi got old, all of his male relatives were all gone excluding his only son, Hideyori. For example, the ex-successor, Hidetsugu was forced to kill himself by performing Harakiri. Hideyoshi’s brother, Hidenaga died because of illness. Hideie might have been considered one of his few relatives who would support Hideyori in the future.

The Portrait of Hideyoshi Toyotomi, attributed to Mitsunobu Kano, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)

Hideie was also a great lord who several territories with about 500,000 Koku of rice. Okayama Castle was renovated as his home. It was said that the construction was done between 1590 and 1597. The center of the castle was moved from the Ishiyama hill to the Okayama hill to the east. The new center (the main enclosure) was surrounded by high stone walls which was over 15m high. They were built piling up natural stones, which was called the Nozura-zumi method. Asahigawa River had been diverted into several flowing rivers around the castle but was converged as a natural moat in the north and east of it. Many other enclosures were also built in the southern and western parts of the castle, which were surrounded by artificial moats. The castle town was well developed. However, Hideie was so busy that he couldn’t live there for a long time. However, he sent his instructions on how to build the castle town to Japan from Korea where he was positioned during the invasion.

The transition of the scale of the castle, the second one from the left is Naoie’s period and the third one is Hideie’s period, notice the diversion of the rivers
The range of Okayama Castle during Hideie’s period, exhibited by Okayama Castle, The dark blue line represents the convered river flow that turns into one big moat
The remaining stone walls of Hideie’s period

The most interesting thing of the castle was its main tower as the symbol. It officially had 3 levels with 6 floors (however, some historians consider it 4 or 5 levels because of its complex roofs). It was over 20m high (about 35m in total including its stone wall base). The base was built along the natural terrain as the techniques were still primitive at that time. Therefore, the base became a scalene pentagon on a plane. As a result, the first floor became the same shape as the base. As you go higher, the shape turns into a square. Because of the complex floors, the first and second levels looks like multiple turrets and the top level like a lookout point was on them. This style is called “Boro-gata” (means the lookout type). The main tower of Okayama Castle is said to have followed the style of Nobunaga Oda’s Azuchi Castle and Hideyoshi’s Osaka Castle. The walls of the tower were painted black, which originated from the nickname of the castle, “Ujo” (means Crow Castle). In addition, the castle was decorated by rooftiles using gold leaves, which needed special permission from Hideyoshi to be used.

The old photo of the original main tower (licensed under Public Domain via Wikimedia Commons), Unfortunately because the picture is in black and white, it’s hard to tell that the walls were indeed in the color of black
The miniature model of the main tower, exhibited by Okayama Castle, The minature model has a slight difference in design compared to the modern look of the castle today
The excavated or restored rooftiles using gold leaves, exhibited by Okayama Castle, the round family crest is Toyotomi Hideyoshi’s family

However, after Hideyoshi died in 1598, the situation changed dramatically. The authority of Hideie, which had been back upped by Hideyoshi, began to deteriorate. That caused an imbalance in power, which is often called Ukita Trouble. Some senior vassals, such as Ukita Sakyonosuke, and Hideie’s close vassals like Jirobe Nakamura fought against each other about who would rule their territories. Unfraternally, Hideie was not able to stabilize it. Eventually, many vassals left Hideie. For example, Ukita Sakyonosuke would become the lord of Tsuwano Castle. As a result, the power of Hideie would eventually disappear.

The portrait of Ukita Sakyonosuke, private owned (licensed under Public Domain via Wikimedia Commons)
The ruins of Tsuwano Castle (in Shimane Prefecture)

On the 15th of September in 1600 (according to the lunar calendar), the Battle of Sekigahara occurred, where Hideie joined the Western Allies but was unfortunately defeated. He escaped from the battlefield and hid in the mountain areas with his few retainers for a while. Then, he sailed to Satsuma Province to ask the Shimazu Clan which also joined the Western Allies for help. The clan still did not surrender to the Tokugawa Shogunate which was the former Eastern Allies. Hideie wanted to survive and get back to being a lord. After the clan and the shogunate made peace in 1603, Hideie presented himself at the shogunate the following year. The decision of the shogunate was to banish him to Hachijojima Island, nearly 300km away from Edo (the current Tokyo), forever. It was said Hideie never gave up on his comeback until his death when he was 84 years old in 1655. Hideie must have been stronger than his image of ” a young nobleman of the Toyotomi Government”.

The encampment of Hideie Ukita at the Sekigahara battlefield

Hideaki Kobayakawa, a Misfortunate Lord who Modernizes the Castle

After that, Hideaki Kobayakawa entered Okayama Castle as the lord of the Okayama Domain which earned him about 400,000 Koku of rice. This was his reward for helping Ieyasu win The Battle of Sekigaha. His actions gave him the reputaiton of a betrayer. He switched from the Western Allies to the Eastern Allies during the battle, being forced by the way of Toi-deppo (shot by Ieyasu Tokugawa). However recent studies suggest that Hideaki did not switch sides halfway through the battle but rather was supportive of the eastern allies from the very beginning. In spite of this, his bad reputation affected his relationship with the Okayama Domain. They said that Hideaki lived a luxurious life, doing bad things, and finally died a madman. As a matter of fact, he killed a senior vassal, which resulted in other senior vassals leaving him in fear of getting killed.

The portrait of Hideaki Kobayakawa, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)

However, recent studies suggest that Hideaki’s death was caused by excessive alcohol drinking since his childhood. In addition, he left too many achievements for his short two years at Okayama before his death at only 21 years old. The purge to his senior vassals might have indicated his new government with his new close vassals. Some of Hideaki’s achievements include land survey, reorganization of temples, destroying unnecessary castles, and modernizing Okayama Castle (excessive castles could lead to rebellions which many lords wanted to minimize). The modernizing was done because the castle needed to adapt to new military methods after the Sekigahara battle.

Hideaki doubled the range of the castle (from 60 hectares to about 110 hectares). The outer third enclosure was built in the new western part of it. The outer moat also surrounded the enclosure, which was 2.5km long in total. It was said that the moat was built in only 20 days, which gives it its nickname “Hatsuka-bori” (which means 20 days moat). It was also said that it was fortified to prepare for the possible invasions from the Mori Clan. The clan was defeated during the Sekigahara battle and their territories were reduced by the shogunate, but Hideaki wanted to prepare for a possible revenge invasion from the west of Okayama Castle. In addition, Hideaki also extended the main enclosure and built new turrets and gates. We can see the stone walls of the enclosure, built by him, next to those of Hideie Ukita’s period. Some of the turret buildings were said to have been moved from castles which had been abandoned.

The ruins of the outer moat
The right side of these stone walls were built by Hideaki, the left side was built by The Ukita Clan
The miniature model of Onando Turret, which was one of turrets that were moved\ from other castles, exhibited by Okayama Castle

Hideaki died not having a successor. For this reason, the shogunate fired the Kobayakawa Clan. He was forced to mature at a young age, and like the wind he had an early demise. If he could have lived for few more years or have had his successor, his reputations would have been different from the current ones. He was really a misfortunate lord.

Ikeda Clan, the Pivot of Western Japan completes the Castle

Okayama Castle and the Okayama Domain was followed by Tadatsugu Ikeda when he was only 5 years old. He was a son of Terumasa Ikeda, the lord of Himeji Caste, whose wife was a daughter of Ieyasu Tokugawa. Therefore, Tadatsugu was a grandson of Ieyasu. This promotion may have been favoritism by Ieyasu. Tadatsugu was back upped by Toshitaka Ikeda (20 years old) who was another son of Terumasa, but his mother was different from Tadatsugu (Terumasa’s ex-wife). Tadatsugu died young just after he grew up, so his brother, Tadakatsu (14 years old but after his coming-of-age ceremony) followed him. Tadatsugu died when he was 31 years old and his successor (Mitsunaka) was only 3 years old back then. The shogunate decided to move Mitsunaka to Tottori Castle. Instead, Mitsumasa Ikeda, who was a son of Toshitaka, moved from Tottori to Okayama when he was 24 years old. Overall, the shogunate considered Okayama castle and the domain as an important spot in western Japan, where a young lord was not able to govern it properly.

Himeji Castle
The Portrait of Terumasa Ikeda, owned by Tottori prefectural art museum (licensed under Public Domain via Wikimedia Commons)
The Portrait of Tadatsugu Ikeda, owned by Setai-in Temple (licensed under Public Domain via Wikimedia Commons)

Okayama Castle was finally completed by the Ikeda Clan. First, Toshitaka, who was the guardian of Tatatsugu, developed the inner second enclosure and the western enclosure. The remaining Nishite Turret was built at the western enclosure at the same time. Secondly, Tadakatsu extended the main enclosure to build the government office called “Omote-shoin”. The remaining Tsukimi Turret was also built there. The castle not only become a home for battles, but it also become an office for the government.

Part of the illustration of Okayama Castle in Bizen Province, exhibited by the National Archives of Japan
The Portrait of Toshitaka Ikeda, owned by Hayashibara Museum of Art (licensed under Public Domain via Wikimedia Commons)
The remaining Nishite Turret, which is located in front of the inner moat
The Portrait of Tadakatsu Ikeda, owned by Setai-in Temple (licensed under Public Domain via Wikimedia Commons)
The miniature model of the main enclosure of Okayama Castle, exhibited by Okayama Castle
The remaining Tsukimi Turret, This turret is located on the bottom left corner of the diorama shown above

After Mitsumasa Ikeda became the lord, he improved the civil administration and cultural affairs in his domain. He learned Confucianism to lead the people in the domain. He also established the Okayama Domain School in 1669 for the Samurai-class people. Furthermore, he built the Shizutani School in 1670 for the lower-class people, which was said to be the earliest school for commoners in Japan. The constructions of the schools were instructed by his excellent close vassals like Nagatada Tsuda. On the other hand, the castle town of Okayama often suffered from natural disaster damages like floodings of Asahigawa River. This was because the river was artificially converged as a natural moat when the castle was renovated. As a result, the water of the river would often overflow to the town during harsh weather conditions. Mitsumasa ordered Nagatada to prepare preliminary measures for possible natural disasters. Nagatada decided to build spillways called “Hyakkenn-gawa” (which means 180m-wide river) at the upstream of Asahigawa River which came from the ideas of a Confucian, named Hanzan Kumazawa. The spillways usually worked as banks, but they changed to a river when the flow of Asahigawa River overflowed.

The Portrait of Mitsumasa Ikeda, owned by Hayashibara Museum of Art (licensed under Public Domain via Wikimedia Commons)
The ruins of the Okayama Domain School
The auditorium of the Shizutani School
The explanation of Hyakkenn-gawa River, exhibited by Okayama Castle, the curved blue arrow represents the overlow of the riverbanks during flooding. Notice the stone fortification in front of the reservoir that was prepared for the excess of water from the flooding. Back then the reservoirs were used as farmlands by farmers.
The second bank of Hyakkenn-gawa River

Mitsumasa’s successor, Tsunamasa liked culture and entertainment very much.
After the spillways were completed, the site across Asahigawa River from the castle became a wasteland. Tsunamasa launched the construction of his garden there, called Gokoen which is the current Okayama-Korakuen, one of the three greatest gardens of Japan. It was also instructed by Nagatada, who was like a superman! (a powerful retainer, rather than a powerful warrior) The garden was mostly consisted of fields, where farmers worked, as if it was a real countryside, by Mitsumasa’s interests. He commuted to his own garden by a boat from the castle occasionally. As time passed, the appearance of the garden was changed by his descendants. For example, most of the fields were turned into grass. Artificial hills and ponds were added on some points of the garden, which resulted in what we see today. The garden was also used for guests and opened to the public on somedays during the later Edo Period.

The Portrait of Tsunamasa Ikeda, owned by Hayashibara Museum of Art (licensed under Public Domain via Wikimedia Commons)
The current Okayama-Korakuen
The illustration of the Gokoen garden, 1n 1863, exhibited by the Cultural Heritage Online

To be continued in “Okayama Castle Part2”

205.Matsuoyama Castle Part1

The battle of Sekigahara, which occurred in 1600, is one of the biggest events in Japanese history. The highlight of the battle has been said to be the betrayal of Hideaki Kobayakawa. However, historians are trying to re-create the Sekigahara story by reviewing the few remaining primary sources and some of the secondary ones which were reliable.

Location and History

Introduction

The battle of Sekigahara, which occurred on the 15th of September 1600 (according to the lunar calendar), is one of the biggest events in Japanese history. The highlight of the battle has been said to be the betrayal of Hideaki Kobayakawa. The widely accepted theory says the followings. Hideaki first supported the western allies and settled on Matsuoyama Castle, in the south of the Sekigahara field. However, he still waited to see the battle for a while, wondering which ally would be better, the eastern or the western. He had made a secret agreement with Ieyasu Tokugawa, who was the top of the eastern allies, to support. Initially, Koyakawa did not move, therefore Ieyasu got tired of waiting. He then ordered his soldiers to shoot at the Hideaki’s troops. The shooting was called “Toi-deppo” which means to force by guns. Hideaki was very surprised to hear that. In that instance, he quickly decided to support the eastern allies. This indecision by Kobayakawa lead to the death of Mitsunari, but gave victory to Ieyasu.

The folding screens of the Sekigahara Battle, owned by Sekigahara Town History and Folklore Museum (licensed under Public Domain via Wikimedia Commons)

Recent studies suggest the betrayal of Hideaki and the Toi-deppo story.
The whole story of the Sekigahara battle is consisted of very few primary sources and many other secondary sources. The Toi-deppo story comes from one of the secondary sources. The Sekigahara Battle is long. One part of the story refers to Toi-Deppo, which was first written in the Keicho Gunki, a war chronicle which was written over 50 years after the battle. If the story is a fiction, the timing of Hideaki’s decision would also be doubtful. Historians are trying to re-create the Sekigahara story by reviewing the few remaining primary sources and some of the secondary ones which were reliable. In addition, Matsuoyama Castle has been said to be the base of Hideaki Kobayakawa during the Sekigahara battle. However, it would also be important to know when and how the castle was built and used.

The portrait of Hideaki Kobayakawa, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)

This article will explain three different theories of Hideaki and Matsuoyama Castle with three different viewpoints.
The viewpoints will include:
a. What and where did Hideaki go before the Sekigahara battle?
b. Why did Sekigahara become the battlefield and when and how did Hideaki settle on Matsuoyama Castle?
c. When did Hideaki really decided to support the eastern allies?

The theories on this article will include:

  1. The defacto theory including the Toi-deppo story
  2. The theory that Hideaki was not a betrayer
  3. The theory that the western allies would attack Matsuoyama Castle

    As a preface, I will describe the prehistory of Hideaki and Matsuoyama Castle before the battle.

Hideaki and Matsuoyama Castle before Sekigahara Battle.

Hideaki was born in 1582 as the fifth boy of Iesada Kinoshita who was the big brother of Kitano-mandokoro, the first lady of Hideyoshi Toyotomi. He was adopted by Hideyoshi when he was a child and was raised by Kitano-mandokoro. Surprisingly, Hiedaki celebrated his Coming of Age at only 7 years old and became a noble. This was because he was one of the candidates to be Hideyoshi’s successor. However, after Hideyori Toyotomi, Hideyoshi’s own child was born, Hideaki was adopted again by the Kobayakawa Clan. Hideyoshi thought Hideyori would have become his successor.

The portrait of Iesada Kinoshita, the biological father of Hideaki, owned by Kenninji Temple (licensed under Public Domain via Wikimedia Commons)

There is an interesting episode about that from a war chronicle as follow. Hideyoshi originally wanted to adopt Hideaki to the Mori Clan and for the Mori Clan to take over, which was the head family of the Kobayakawa Clan. Takakage Kobayakawa, the lord of the clan offered to Hideyoshi to accept Hideaki to protect his master. However, according to historians, Takakage probably decided it by himself. This was because Takakage was an independent lord after he was given his own territory by Hideyoshi. Takakage assumed he would return the territory to Hideyoshi so that he could build a good relationship with him.

The portrait of Takakage Kobayakawa, owned by Beisanji Temple (licensed under Public Domain via Wikimedia Commons)

Hideaki’s new territory was at Chikuzen Province (which is part of Fukuoka Prefecture now) which was one of the basements for the invasion of Korea by Hideyoshi. Hideaki also went to Korea as the supreme commander when he was 16 years old (so, it was just a formality). However, when he went back to Japan in 1598, he was forced to move to Echizen Province (the current Fukui Pref.) by Hideyoshi. The reason for it is uncertain. War cornicles suggest that Hideaki made a mistake in the invasion, while historians speculate that Hideyoshi wanted to rule Chikuzen Province directly to boost his invasion. The fact is, after Hideyoshi died, that Hideaki returned to Chikuzen Province and was considered one of the great lords of Japan, following the members of Counsil of Five Elders in the top government. This would trigger the Battle of Sekigahara.

The Portrait of Hideyoshi Toyotomi, attributed to Mitsunobu Kano, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)

Matsuoyama Castle was located on the border between Omi (the current Shiga Pref.) and Mino (Gifu Pref.) Provinces. A record says that a retainer of Nagamasa Azai, who owned Omi Province, was assigned to the castle during the Sengoku Period. This was probably because Nagamasa was against Nobunaga Oda who owned Mino Province at that time. Nobunaga would eventually get Omi Province before the castle was abandoned. On the 10th of Argust, 1600 (according to the luna calendar), Mitsunari Ishida entered Ogaki Castle. Mitsunari ordered his retainer to resume Matsuoyama Castle. Mitsunari thought that his Western Allies would attack the Eastern Allies based on Ogaki Castle, backed up by other mountain castles. Matsuoyama Castle was one of them. A historian speculates that Mitsunari thought that Terumoto Mori, the greatest lord in the Western Allies would enter Matsuoyama Castle. Anyway, the castle was refortified again to prepare for the battle.

The flag of Hideaki Kobayakawa at the ruins of Matsuoyama Castle; You can see this flag on top of the mountain, This is a modern flag that helps tourist find this location

Defacto theory including Toi-deppo story

It is confirmed that the Western Allies captured Fushimi Castle on the 1st of August (according to the lunar calendar). It is also certain that the troops of Hideaki Kobayakawa joined the attackers as the main force. After that, according to the de facto theory, many of the Western Allies, including Mitsunari Ishida, stayed in Ogaki Castle, while Hideaki marched over to Omi Province (the current Shiga Province). There is evidence of his actions there. remains at a temple of the province. There is a noticeboard where Hideak’s soldiers were asked not to be violent in the temple. Hideaki still supported the Western Allies, however, he also negotiated with the Eastern Allies. A secret letter from Nagamasa Kuroda and Yoshinaga Asano was given to Hideaki before the battle. The letter is written as followed.

“We (Nagamasa and Yoshinaga) will need to serve Kitano-mandokoro.
You need to decide whether or not you will support us until Ieyasu arrives here.”

Kitano-mandokoro took care of Nagamasa earlier on. He managed to persuade Hideaki that it would be needed to support the Eastern Allies if Hideaki wanted to serve Kitano-mandokoro from then on.

The temple whom Hideaki gave the noticeboard (quoted from the website of Maibara City)

Ieyasu arrived at Aakasaka Camp on the 14th of September, near Ogaki Castle. He wanted to have an open field battle, which he was good at, so he needed to lure Mitsunari out from the castle. Ieyasu intentionally announced that he would attack Sawayama Castle, which was Mitsunari’s home and far to the west from Ogaki. When Mitsunari heard this, he was surprised and left the castle in a hurry, got ahead of Ieyasu, and took up positions on Sekigahara Field on the way to Sawayama. Hideaki also reached Matsuoyama Castle in the south of Sekigahara in accordance with Mitsunari’s instructions. Historians speculate that Mitsunari might have tried to escape to Sawayama Castle with his own decision. This is because a letter of Hiroie Kikkawa, who was one of the members of the Western Allies on Nangusan Castle between Ogaki and Sekigahara, says so. However, Mitsunari couldn’t do that because had to prevent the eastern allies from invading Sekigahara on the way there. Yoshitsugu Otani, a lord of the Western Allies only expected that Hideaki would betray him, therefore, Yoshitsugu’s troops moved closer to Matsuoyama.

The portrait of Mitsunari Ishida, from the database of Historiographical Institute, the University of Tokyo (licensed under Public Domain via Wikimedia Commons)

The battle between the Eastern and the Western Allies occurred early in the morning on the 15th of September. It went back and forth until noon. Hiroie’s troops on Nangusan and Kobayakawa’s troops didn’t move because of their secret pact with Ieyasu. However, Ieyasu got annoyed as Hideaki had also promised that he would join the Eastern Allies. That’s why Ieyasu ordered the Toi-deppo (a way to induce or encourage solider to move by shooting directly at them). Hideaki’s decision happened around noon. Some of the soldiers who joined the Western Allies testified after the battle as followed:

“The Eastern Allies and Otani’s troops battled each other 6 or 7 times in the morning. Kobayakawa’s troops, then, rushed down from the mountain into Otani’s side and destroyed them.”

As for the Toi-deppo story, it may be a fiction as mentioned above. However, a historian found another tradition that might have been the origin of the story as followed:

An old man in Bizen Province (the current Okayama Pref.) heard about an interesting story from Kobayakawa’s retainer. During the battle, Hideaki heard gunshots at the foot of the mountain. His retainers reported that the shooters of the Eastern Allies said that the gunshots were not intentional and that they just misfired. The retainers also added it might have included something else.

The historian speculates that the shooting could have been an indirect warning from Ieyasu. However, this theory is still not the number one theory according to historians.

The Portrait of Ieyasu Tokugawa, attributed to Tanyu Kano, owned by Osaka Castle Museum (licensed under Public Domain via Wikimedia Commons)

Theory that Hideaki was not a Betrayer

I will next explain a new theory about Hideaki and Matsuoyama Castle. Accorting to this theory, it is uncertain where Hideaki was after the battle of Fushimi Castle just before the Sekigahara Battle. The de facto theory says he was in Omi Province at that time. However, that comes from the family records of the Inaba Clan which was written during the Edo Period. The records also say their founder, who was a senior vassal of Hideaki, captured Matsuoyama Castle for the Eastern Allies. That means the records were manipulated by his descendants to show their contributions to the current shogunate, which may not be plausible now. On the other hand, a lord of the Eastern Allies reported that Hideaki stayed in Ogaki Castle just before the Sekigahara Battle. This is contradictory. Overall, in my opinion, I think Hideaki was undecided as to who he would support until the moment he rode up the mountain.

The portrait of Masanari Inaba, who was a senior vassal of Hideaki, owned by Kanagawa Prefectural Museum of Cultural History (licensed under Public Domain via Wikimedia Commons)

In fact, there is also no certain evidence where Hideaki was positioned at the beginning of Sekigahara Battle. However, another evidence suggests it. The letter of Hiroie Kikkawa, mentioned above, says an interesting matter just before the battle.

“The Western Allies moved from Ogaki Castle to Yamanaka (the west of Sekigahara) in order to rescue Yoshitsugu Otani because Hedeaki would be fighting against them.”

According to the letter, Hideaki and Yoshitsugu had already arrived early to inspect the field. In addition, a letter that Masamune Date wrote, who was reported from his relative about the Sekigahara battle, also says:

“The Western Allies moved from Ogaki Castle to support Nangusan Castle.”

Overall, historians speculate why Sekigahara became the battlefield as followed: Ieyasu at Akasaka Camp first tried to attack Nangusan Castle. Mitsunari heard about this and tried to intercept Hideaki, so he decided to leave Ogaki Castle and went to Sekigahara. Then, Hiroie Kikkawa at Nangusan Castle surrendered to Ieyasu who next ordered his troops to chase after Mitsunari. The Western Allies eventually reached Yamanaka and positioned themselves, which was not Sekigahara. This is another different point from the defacto theory.

The portrait of Hiroie Kikkawa, owned by Historiographical Institute the University of Tokyo (licensed under Public Domain via Wikimedia Commons)

If they are true, Hideaki declared he would join the Eastern Allies at the latest the day before the battle. The battle started around 10am, where Hideaki joined it at the same time, and the Western Allies were defeated by the Eastern Allies quickly. They are different from the defacto story. The theories of the starting time of the battle are also different depending on the testimonies of the participants. Historians speculate as followed. In the early morning at Sekigahara field which was covered in fog. The Otani troops went ahead from the Yamanaka area to the Sekigahara field. It first battled against the frontline of the Eastern Allies. When the fog cleared up around 10am, the Kobayakawa troops attacked the Otani troops which would eventually be destroyed. After that, the main forces from both the Eastern and Western Allies fought against each other at the Yamanaka area, but the Western Allies were also destroyed in a short amount of time. Ieyasu wrote in his letters that Hideaki worked well in Sekigahara and his troops destroyed the Western Allies including Mitsunari in Yamanaka.

The last position of Ieyasu Tokugawa at the Sekigahara field, this is the encampment of the eastern allies, The two inner flags show Ieyasu’s family crest, while the two outer flags show his motto

The theory that Western Allies would attack Matsuoyama Castle

The previous theory can help us understand that Hideaki was not a betrayer in the middle of the battle. However, the theory is consisted of much circumstantial evidence. It doesn’t show us the clear conflicted formation between Hideaki and the Western Allies. (Situations of battles may sometimes be like that.) Another theory by another historian may clear this up. The main idea of the theory is that the Sekigahara Battle happened when the Western Allies tried to destroy Hideaki’s troops on Matsuoyama Castle. In this theory, Hideaki was stationed in Omi Province and negotiated with the Eastern Allies before entering the castile, the same as the defacto theory. However, the theory speculates that Hideaki made his decision to join the Eastern Allies in advance of reaching Matsuoyama Castle, which is the different point from the defacto theory.

The ruins of Matsuoyama Castle

The biggest difference in this theory from other ones is the reason why Mitsunari left Ogaki Castle. According to this theory, Mitsunari heard about Hideaki’s rebellion during the meeting at the castle on the 14th of September, the day before the Sekigahara Battle. Mitsunari decided to leave the castle to destroy Hideaki. One of the pieces of evidence for the theory is the same part of the letter Hiroie Kikkawa wrote, as the previous theory uses. It says “the Western Allies went from Ogaki Castle to Yamanaka (near Sekigahara) in order to rescue Yoshitsugu Otani because Hideaki would be fighting against them” in the previous theory. However, the same part says in this theory that “The Western Allies were going to attack Yamanaka, which meant Hideaki’s rebellion became obvious, so Yoshitsugu Otani followed them from Ogaki Castle.” Why are the interpretations of the same part so different between each other? This is probably because letters of warlords were usually written using simple and often vague facts, so that the interpretations of the current historians may sometimes become different. Another reason is sometimes the messenger would be intercepted, and vague instructions would be hard for the enemy to understand.

The grave of Yoshitsugu Otani in the Yamanaka area

Mitsunari was positioned on Jigai-ga-oka Hill in front of Matsuoyama Castle on Matsuoyama Mountain, not on Sasaoyama Mountain which the defacto theory says. According to the testimonies of some soldiers who joined the battle, the Ukita and Konishi’s troops were on the frontline against the castle to the south, back upped by the Shimazu’s troops. Mitsunari’s troops were in the eastern side of the Shimazu. The Eastern Allies including Ieyasu chased after Mitsunari in order to rescue Hideaki who had already joined them. That’s why they saw, from the east, the Western Allies like Miatunari on the frontline, back upped by the Shimazu’s troops, which were written in other records. The Otani’s troops finally arrived and was positioned at Sekigahara field in the eastern side of his allies. As a result, they were first attacked by the Eastern Allies, then sandwiched between the Eastern Allies and Hideaki’s troops, and eventually destroyed.

Jigai-ga-oka Hill

Some of the soldiers who joined the Western Allies testified after the battle as followed:

“The Eastern Allies and Otani’s troops battled each other 6 or 7 times in the morning. Kobayakawa’s troops, then, rushed down from the mountain into Otani’s side and destroyed them.”

This is the same testimony that proves the defacto theory.
It is very interesting that this testimony proves two different situations.

To be continued in “Matsuoyama Castle Part2”

51.Azuchi Castle Part1

Azuchi Castle, which had many unique characters, suddenly appeared and disappeared in a short amount of time like its master, Nobunaga. As a result, it has a lot of mysteries which attract us. This article will focus on 5 items of the mysteries, which people often dispute about.

Azuchi Castle was, needless to say, known for the final and most popular home of Nobunaga Oda. Other than that, he created a typical style of Japanese castles, including the main tower, turrets, and white walls on top of the stone walls, which are guarded by defensive gates and are surrounded by water moats. The style was passed down from one generation to the next by other great Japanese lords. That’s why we still think it as the most typical Japanese castles’ style. Therefore, Azuchi castle was the inspiration for many other castles that came after it.

The portrait of Nobunaga Oda, attributed to Soshu Kano, owned by Chokoji Temple, in the late 16th century (licensed under Public Domain via Wikimedia Commons)

However, the castle had a very short life for its impact. The construction of the castle launched in 1576. Nobunaga started to live in its main tower three years later. Its completion was done in September of 1581 (according to the luna calendar), just 9 months before Nobunaga’s death during the Honnoji Incident in Kyoto on the 3rd of June the following year. The main tower of the castle was burned down around the 15th of June for some unknown reasons. The Oda’s relatives still used the remaining parts of the castle for a while. Atter that, the castle was eventually abandoned in 1585 because their new home, which was called Hachimanyama Castle, was completed.

The ruins of Hachimanyama Castle

As you saw, the castle, which had many unique characters, suddenly appeared and disappeared in a short amount of time like its master, Nobunaga. As a result, it has a lot of mysteries which attract us. For example, its own name “Azuchi” is one of them. A record of the Hosokawa Clan says that Nobunaga changed the name of the land to Azuchi. However, the record doesn’t say why. Some speculate the name came from Kyoto’s nickname “Heian-rakudo” which borrows the two Chinese characters of Azuchi (安土). The original Chinese characters of Heian-rakudo is as followed: 平安楽土. They think Nobunaga wanted the castle to be the new capital of Japan. The speculation is not very plausible because other experts argue that other speculations are more plausible.

Azuchi Mountain

This article will focus on 5 items of the mysteries, which people often dispute about. I will also compare Theory A with Theory B for each item by summarizing the opinions about each one. Theory A will mainly consist of conventional wisdom from the officials, historians, and experts. Theory B, on the other hand, will focus on the opinions of Mr. Senda who is a famous castle archaeologist and from me (in the last part).

Location and History (Mystery Showdown)

Mystery of the Straight Main Route to the Mountain

Introduction

A surprising thing was discovered in the ruins of Azuchi Castle during the excavations since 1989 by Shiga Prefecture. Castles on mountains during the Sengoku Period usually had zigzagged routes to the top and had defensive walls, gates and turrets on the way to the top. Azuchi Castle Ruins had had stone walls on the way of the main route, which looked like a typical mountain castle at that time. However, the stone walls were built by Sokenji Temple at Azuchi Mountain during the Edo Period, abd not the Sengoku Period. The excavation team removed the stone walls and discovered that there was the original straight main route to the mountain, which is approximately 180m long. It also found the ruins of residential areas maybe for the senior vassals along the route, such as “Hideyoshi Hashiba (then later Hideyoshi Toyotomi who would be the ruler of Japan). In addition, four gate ruins were found around the entrance of the route. Three of the four gates had a simple design, called “Hira-koguchi”, where visitors (and possibly enemies) could have passed through easily. I wonder Why the straight main route was built instead of the zigzagged route which is typical of defensive castles during the Sengoku Period?

The diorama of the stone walls on the main route before it was removed, exhibited by Azuchi Castle Archaeological Museum
The current main route of Azuchi Castle
The ruins of the residence of Hideyoshi Hashiba

Theory A

One theory suggests this route was used only for special visitors in special cases. It was particularly considered as the route for the emperor’s royal visit to Azuchi Castle though it never happened. That’s why the route was built straight for the convenience of the visitors. The straight layout might also have been emulated to look like the central street of Kyoto. In addition, there are no records of this route because it was rarely used. The three simple gates around the route entrance must have also been built only for these visits. The layouts were very similar to that of the imperial palace at that time. The gates were used depending on the visitors’ classes. The ruins of the residential areas along the route might have been used as the facilities for the visitors. According to the imaginary drawing through the use of CG of the main route, the great main tower of the castle stands over there (refer to the third picture at the bottom). The visitors on the route would feel the power of the castle’s master, Nobunaga Oda

The ruins of the main gate
The diorama of Azuchi Castle, exhibited by Azuchi Castle Archaeological Museum
The imaginary drawing of the main route of Azuchi Castle, exhibited by Gifu Castle

Theory B

The next theory was the main route was built not only for the royal visit, but also for the residential areas, as I mentioned earlier. In fact, Nobunaga had built the similar straight main route in Komakiyama Castle on Komakiyama Mountain, which was his home earlier on. The residential areas of his senior vassals were constructed along the route, too. The route was straight until the midway point of the slope of the mountain but the route above had zigzagged patterns for defensive purposes. This had been done when Nobunaga was young, so he never met the emperor. Azuchi Castle had the same system as Komakiyama Castle. The route to the top zigzags after 180m. Several defensive gates were also built on the way to the upper part. Why didn’t Nobunaga make all the routes straight if he wanted them to use only for the royal visits? The reason for the three simple gates were designed to classify Nobunaga’s retainers when they went to the castle. In addition, the masters of the residential areas of Azuchi Castle were very busy and had their own territories in other locations. As a result, the areas were usually vacant, which wouldn’t appear on records.

The ruins of Komakiyama Castle
The main route of Komakiyama Castle
The zigzagged route of Komakiyama Castle just after the straight route

Mystery of the Main Hall

Introduction

The excavation team also researched the top area of Azuchi Mountain, which includes the main enclosure. They found another answer. The team discovered that the stone foundations of the main hall on the enclosure have wider intervals than the typical halls at that time. After some studies, it was found that the layout of the stone foundations of Azuchi Castle Hall is very similar to that of Seiryoden Hall in the imperial palace during the Edo Period. Shincho-koki, which is the most reliable biography of Nobunaga, stated that Azuchi Castle had room for the royal visit or the emperor’s stay. A noble’s diary also says that the emperor would go to Azuchi. What did the main enclosure of Azuchi Castle really look like?

The current main enclosure of Azuchi Castle

Theory A

One plausible theory suggests there must have been the main hall for the emperor on the main enclosure. Nobunaga might have thought he would move the emperor and the capital of Japan from Kyoto to Azuchi. Before the construction of Azuchi Castle, Nobunaga retired as the lord of the Oda Clan. He also resigned from all his positions in the imperial court until the completion of the castle. Nobunaga might have wanted to be the person who surpasses all the positions of Samurai and the imperial court. He actually gave his castle in Kyoto to the current prince. He also adopted the prince’s son. These facts might indicate that Nobunaga would invite one of them to Azuchi as the new emperor. If the new emperor lived in the main hall of the main enclosure, Nobunaga could look down on him from the much higher main tower. That would symbolize Nobunaga was just like the most powerful monarch of Japan.

The portrait of Prince Sanehito, owned by Sennyuji Temple, (licensed under Public Domain via Wikimedia Commons)

Theory B

An alternative theory suggests the main hall must have been the government offices. Nobunaga usually lived in the main tower and the second enclosure, with his family where other people were rarely allowed to enter. The other third enclosure on the mountain was used as the reception hall. Therefore, if the main enclosure was used just for the emperor, there would be no place for the government to stay in. According to architects, it is impossible to determine what was built using only stone foundations. The Shincho-koki biography also states that there was another hall, called “Nanden” (which means “south hall”) in the enclosure. It was thought that Nobunaga usually met his retainers there. “The royal visit room”, written in the biography, also states that there was probably part of the hall or another small hall. As for Nobunaga’s position, he might have destined to become the next shogun, which was the traditional position for the new shogunate, according to a historian’s study.

The center of the diorama above, showing the second enclosure, the main tower ruins, the main enclosure, and the third enclosure (from the left to the right), exhibited by Azuchi Castle Archaeological Museum

Mystery of the Main Tower

Introduction

The main tower of Azuchi Castle is one of the examples of the first proper high buildings for Japanese castles at that time. It was said that Nobunaga was the only person who lived in a main tower according to records. The tower must have had a spiritual aura and authoritative presence. According to Gyuichi Ota who was the author of the Shincho-koki biography and Luis Frois, a missionary who visited Japan at that time, it was about 32m tall (41m including the tower base) composed 5 levels (6 floors and 1 basement). The tower was very colorful. Especially, the 5th floor was a red octagon shape with Buddhist paintings on the inside walls. The top 6th floor was a golden square shape with Chinese saints’ painted on the inside walls. There are a lot of remaining stone foundations to the base, but they just lack the central one, which comes from the original conditions. What did the main tower actually look like?

The stone foundations of the tower base, which lacks the central one
The miniature model of the 5th floor, exhibited by Azuchi Castle Museum
The miniature model of the 6th floor, exhibited by Azuchi Castle Museum

Theory A

A popular theory suggests there is a drawing which shows the design of the tower, called “Tenshu-sashizu” (which means “the design of the tower”). It was recorded and passed down by a magistrate family of the Kaga Domain. It doesn’t say it is the design of Azuchi Castle tower, however, it matches the records mentioned above and the on-site situations. Dr. Akira Naito made a restoration plan using the drawing, which is wildly accepted. According to the plan, the tower had an atrium structure, and a pagoda on the center of the base without the stone foundation. Experts speculate that the pagoda would indicate the appearance from the ground, written in the Lotus Sutra. You can see the 1/20 scale model based on the plan in Azuchi Castle Museum. You can also see the real life model of the 5th and 6th floors of the tower in Nobunaga no Yakata Museum. The tower was vewed as a heaven for Nobunaga who would reign over the pagoda as the only living god.

The miniature model of the main tower, exhibited by Azuchi Castle Museum
The atrium structure and the pagoda in the model
A figure of Nobunaga siting on the 5th floor

Theory B

Others have argued the plan based on the Tenshu-sashizu drawing. They say that it is impossible that the characteristic atrium structure was not recorded. For this reason, there is another restoration plan which doesn’t the atrium. Furthermore, the most controversial problem is that if you rebuild the main tower just as Gyuichi said, the tower will have to hang over the existing base. Dr. Yoshihiro Senda has an alternative theory however. He says that the tower would be able to be supported by Kake-zukuri method. This method involves building the foundation by combining many columns and horizontal beams like lattices on rocks or the ground. Buildings using this method can been seen in some old shrines and temples such as Kiyomizu-dera Temple in Kyoto. It has also been seen in some castles like Himeji and Fukuyama. Dr. Senda points out the traces of stone foundation were found beside the base, which could indicate the Kake-zukuri method was used. In addition, the decisive evidence could be found in the future. Nobunaga sent the screen of illustration of Azuchi Castle, called “Azuchi-san-zu-byobu” to the Pope. The screen was once exhibited in the Vatican Palace but disappeared mysteriously. Officials from Shiga Prefecture is currently seeking for it in Italy. If it is found, it could be the discovery of the century.

The building based on the plan without the atrium (licensed by D-one via Wikimedia Commons)
An example of castle buildings using the Kake-zukuri method, at Fukuyama Castle, quoted from Fukuyama Castle Museum Website
The area beside the tower base, where the traces of stone foundation were found
The imaginary drawing of the “Azuchi-san-zu-byobu” screen

Mystery of Sokenji Temple

Introduction

Nobunaga founded Sokenji Temple inside Azuchi Castle. It is large for a castle. The materials of the temple were not new but were collected from older temples. This temple currently worships Nobunaga. However, curious to say, the temple officially says it was founded by a priest after Nobunaga died. According to Gyuichi’s records, there was a stone, named Bonsan, in the main tower. However, the stone was moved to the temple, according to Luis Frois. The temple was located at the middle point between the center of the castle and the side entrance. This point was important for protecting the castle, where defensive systems could have been built. So, why did Nobunaga build the temple instead of the systems?

The remaining Nio-mon Gate of Sokenji Temple
The remaining three-level tower of Sokenji Temple
The current side entrance

Theory A

Frois also said that Nobunaga founded the temple in order to make people worship him there. The Bonsan stone was the icon of Nobunaga. Frois described that Nobunaga also built a public noticeboard which states people should go to the temple and worship him on his birthday. As a matter of fact, Nobunaga thought his birthday (the 11th of May according to the luna calendar) was like the birthday of the western people. For example, he moved to the main tower on that day, not during lucky days where most Japanese people believed in. The conclusion is that Nobunaga made the important spot as his holy place of the temple.

The grave of Nobunaga at the second enclosure
There is a stone on the grave, which looks like Bonsan

Theory B

In fact, it was not unusual that castles had temples inside them. For instance, Kannonji Castle near Azuchi had Kannon-seji Temple. Takakage Kobayakawa, who was a great warlord in the Chugoku Region, built Kyoshinji Temple in his Ni-Takayama Castle. During the Muromachi and Sengoku Periods, the Samurai ceremonies consisted of two phases. The first one was to confirm the master-servant relationship at Shuden places. The second was to communicate with each other at Kaisho places. In the case of Azuchi Castle, the center of the castle was clearly equivalent to a Shuden place. Meanwhile, Sokenji Temple must have been used as a Kaisho place. For example, when Nobunaga invited his ally, Ieyasu Tokugawa to Azuchi Castle, a Noh play (similar to Kabuki play) was held there. In addition, there are no records about people worshiping Nobunaga at the Japanese side.

The diorama of Kannonji Castle, exhibited by Azuchi Castle Archaeological Museum
Kannon-seji Temple (licensed by Jnn via Wikipedia Commons)
The ruins of Ni-Takayama Castle
The ruins of the Kyoshinji Temple

Mystery of the Main Tower burning down

Introduction

The center of Azuchi Castle, including the main tower, was burned down around the 15th of June in 1582 (according to the luna calendar), just after the Honnoji Incident on the 2nd of June. The following list are the relatives who were involved in using the castle and also the prime suspects who might have burned it down.

・Katahide Gamo: He was at Azuchi Castle on behalf of Nobunaga when the incident happened. However, he left the castle with Nobunaga’s family on the 3rd of June after he heard about the incident.
・Mitsuhide Akechi: He entered the castle on the 5th of June after he killed Nobunaga during the incident. He then gave the treasures of the castle to his retainers and moved to his original home of Sakamoto Castle.
・Hidemitsu Akechi: He was Mitsuhide’s retainer and held the castle instead of Mitsuhide. He left the castle on the 14th of June after he heard about his master being beaten by Hideyoshi Hashiba on the 13th. Taikoki, which is one of Hideyoshi’s biographies, says Hidemitsu was responsible for setting the castle on fire.
・Nobukatsu Oda: He was Nobunaga’s son, and he entered the castle on the 15th of June. According to Luis Frois, it was Nobukatsu who burned the castle down.

The castle might have burned down accidentally or by night thieves. However, if you must speculate one person from the list, who was the biggest suspect?

The stone foundations of the main tower base

Theory A

Nobukatsu must be the suspect as Frois said. Hidemitsu had an alibi that he was at Sakamoto Castle on that day. The Taikoki biography is only adds to the blames of the Akechi Clan. Frois also said that Nobukatsu did it for no reasons because he was unwise. Before the incident, he selfishly attacked Iga Province, failed to do so, and was yelled at by Nobunaga. After the incident, he battled against Hideyoshi, together with Ieyasu Tokugawa. However, he eventually made peace with Hideyoshi who dangled a carrot in front of him, without Ieyasu’s permission. Finally, he was fired by Hideyoshi who became the ruler after the battle of Odawara Castle. He rejected the change of his territory, ordered by Hideyoshi, though Ieyasu accepted it. Nobukatsu was not able to understand the situations properly. He was so incompetent that he could impulsively destroy the legacy of his father who was also angry at him.

The portrait of Nobukatsu Oda, owned by Sokenji Temple (licensed under Public Domain via Wikimedia Commons)

Theory B

This theory is believed in. Nobukatsu must be the suspect, too. However, he was not so incompetent that he did it for a good reason. When he attacked Iga Province, he was the independent lord of the Kitabatake Clan, so he could decide it. Nobunaga had adopted Nobukatsu to the clan as the next successor. He was still the lord of the Kitabatake Clan when he allied with Ieyasu. Hideyoshi mostly captured the territory of the clan (Ise Province) because Ieyasu was so strong. Nobukatsu had to compromise with Hideyoshi before his territory would be occupied. After that, he tried to mediate between Hideyoshi and Ieyasu. He also worked hard in the battle of Odawara Castle for Hideyoshi’s unification of Japan. Therefore, it might not be sensible for Nobukatsu to be fired completely even though he rejected Hideyoshi’s command. This might have been Hideyoshi’s strategy which attempted his prefered territory plan. After the Honnoji Incident, Nobukatsu wanted to be the lord of the Oda Clan, not just that of Kitabatake Clan. However, his brother, Notbutaka also wanted it. Nobukatsu might have burned the main tower down intentionally in order to prevent Nobutaka and other senior vassals from disturbing him.

The portrait of Nobutaka Oda, (licensed under Public Domain via Wikimedia Commons)

To be continued in “Azuchi Castle Part2”